Move emails to dedicated package (#3542)

* Add new package

* Add twenty-emails package

* Use generated files from twenty-emails in twenty-server

* Fix deleted file

* Import emails templates properly

packages/twenty-emails/tsup.config.ts

@@ -0,0 +1,9 @@
+import { defineConfig } from 'tsup';
+
+export default defineConfig([
+  {
+    entry: { index: './tsup.index.tsx' },
+    format: ['cjs', 'esm'],
+    dts: true,
+  },
+]);